Thermarest - Hyperion™ 20F/-6C Sleeping Bag

18 In stock
Weighing a mere 1 lb. 4 oz, defy the cold and rest better while moving through the mountains with the Hyperion.
Weight 1 lbs 3 oz 1 lbs 4 oz 1 lbs 6 oz
Width 27.5 in 28.5 in 29 in
Length 73 in 80 in 85 in
Thickness 4.5 in 4.5 in 4.5 in
Fits 66 in 72 in 78 in
Girth, Shoulder 55 in 57 in 58 in
Girth, Hip 48.5 in 49.5 in 51 in
Girth, Footbox 40 in 43 in 46 in
Overall Packed Dimension 6 x 8 in 6 x 8 in 6 x 8 in
Recommended Comfort Temperature 0 C
Recommended Temperature Limit -6 C
Fill material 900 Fill Goose Nikwax Hydrophobic Down RDS
Fill weight 11.5 oz 12.5 oz 14 oz
Shell Fabric 10D Nylon RipStop w/ DWR
Lining Fabric 10D Nylon RipStop

Frontenac Outfitters

Thermarest Hyperion™ 20F/-6C Sleeping Bag

Built to provide a featherlight pack weight and high-performance warmth, the Hyperion 20F/-6C is among the lightest in its class without sacrificing an ounce of performance. The bag uses thermally-efficient box baffled construction in key areas to ensure warmth and comfort in an ultralight package. Designed with high-quality materials and Therm-a-Rest performance features, the Hyperion keeps your pack light, giving you the freedom to move quickly in the backcountry. Storage sack and compression stuff sack included.
  • Ultralight: One of the lightest pieces in its class, the Hyperion sets a new standard for high-performance outdoor equipment.
  • 900-fill Nikwax Hydrophobic Down : Stays drier and maintains loft 60 times longer than untreated down.
  • Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before.
  • Box Baffled Construction: Uses mesh walls to maximize loft and minimize cold spots in key areas.
  • Comfort Fit: Ergonomic shape and longer zipper provide a more human-friendly fit than other ultralight bags.
  • SynergyLink Connectors: Integrate the bag with a mattress for optimal efficiency and comfort; removable for versatility.
  • Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most, 70% on the top and sides with 30% on the back.
  • Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely.



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